Re: [meteorite-list] Mundrabilla designation question
Hello Martin and List. According to Wasson and Kallemeyn (2002) Geochimica et Cosmochimica Acta, Vol. 66, No. 13, pp. 2445–2473. "The members of the Mundrabilla duo, Waterville (1.63) and Mundrabilla (1.64), are FeS-rich irons, closely related to each other in structure and composition. They are within the sLL scatter field on most diagrams, but plot slightly low on the Ga-, Ge-, and W-Au diagrams. Because of these discrepancies and their very high FeS contents, we list them as ungrouped but they could also be designated anomalous members of the sLL subgroup." Hope this helps! -John & Dawn Arizona Skies Meteorites Martin Altmann wrote: Salü list, in painting my specimen chits, I ask myself, how to denominate Mundrabilla correctly. Old Catalogue has simply "IRANOM", 2000er Grady Catalogue says "IIICD" and "anomalous", now with the finer Au-stuff and the subgroups, I read, that Mundrabilla and Waterville are close to sLL. Shall I write now IAB-ANOM? Will the "anomalous" disappear, if the five-of-a-kind-rule for the subgroup is fullfilled and beside Waterville, three other Mundrabilla-like irons will habe been found? Or refers the "anom" to the troilites, silicates or to the smallness of the taenite crystals (which make etched Mundrabillas to the most beautiful irons, one can imagine. One of my favourites)? Thanks! Martin __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Mundrabilla designation question
Hi, this paper is online available here: HTML-version http://www.google.de/search?q=cache:sWIhX7DhOZ8J:www.ess.ucla.edu/faculty/wasson/mnIABironGCA.pdf+Mundrabilla-Duo&hl=de or as PDF: http://www.ess.ucla.edu/faculty/wasson/mnIABironGCA.pdf. Martin - Original Message - From: "David Weir" <[EMAIL PROTECTED]> To: "Martin Altmann" <[EMAIL PROTECTED]> Cc: Sent: Sunday, January 16, 2005 2:49 PM Subject: Re: [meteorite-list] Mundrabilla designation question > Hello List, > > My source from which I formed my opinion is the paper by J. T. Wasson > and G. W. Kallemeyn, "The IAB iron-meteorite complex: A group, five > subgroups, numerous grouplets, closely related, mainly formed by crystal > segregation in rapidly cooling melts", which was published in Geochimica > et Cosmochimica Acta, vol 66, no. 13, pp. 2445-2473, 2002. > > It's a good read. > > David __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Mundrabilla designation question
Hello List, My source from which I formed my opinion is the paper by J. T. Wasson and G. W. Kallemeyn, "The IAB iron-meteorite complex: A group, five subgroups, numerous grouplets, closely related, mainly formed by crystal segregation in rapidly cooling melts", which was published in Geochimica et Cosmochimica Acta, vol 66, no. 13, pp. 2445-2473, 2002. It's a good read. David Martin Altmann wrote: Oviously David Weir's answer didn't made it through and because most have it listed as Iranom or IIICD: "Hello Martin, In my opinion it is best described at this point in time as Iron, IAB complex, Mundrabilla duo Regards, David" __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Mundrabilla designation question
Oviously David Weir's answer didn't made it through and because most have it listed as Iranom or IIICD: "Hello Martin, In my opinion it is best described at this point in time as Iron, IAB complex, Mundrabilla duo Regards, David" __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Mundrabilla designation question
Hello Martin, In my opinion it is best described at this point in time as Iron, IAB complex, Mundrabilla duo Regards, David __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mundrabilla designation question
Salü list, in painting my specimen chits, I ask myself, how to denominate Mundrabilla correctly. Old Catalogue has simply "IRANOM", 2000er Grady Catalogue says "IIICD" and "anomalous", now with the finer Au-stuff and the subgroups, I read, that Mundrabilla and Waterville are close to sLL. Shall I write now IAB-ANOM? Will the "anomalous" disappear, if the five-of-a-kind-rule for the subgroup is fullfilled and beside Waterville, three other Mundrabilla-like irons will habe been found? Or refers the "anom" to the troilites, silicates or to the smallness of the taenite crystals (which make etched Mundrabillas to the most beautiful irons, one can imagine. One of my favourites)? Thanks! Martin __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
